diff --git a/SketchWidget.py b/SketchWidget.py
index 83f6104..122cd53 100644
--- a/SketchWidget.py
+++ b/SketchWidget.py
@@ -353,10 +353,7 @@ class SketchWidget:
     def do_line_left_click(self, x, y):
         start = self.screenPtToPt((x, self.size[1] - y))
         if self.drawingShape is not None:
-            self.sketch.shapes.append(self.drawingShape)
-            for c in self.drawingConstraints:
-                self.sketch.constraints.append(c)
-            self.drawingConstraints = []
+            self.merge_in_drawing_shape()
             start = self.drawingShape.getPt(1) # start at last snap point
         self.drawingShape = Line(start[0], start[1], start[0], start[1])
         self.queue_redraw()
@@ -404,3 +401,9 @@ class SketchWidget:
             # cancel circle currently being drawn
             self.drawingShape = None
             self.queue_redraw()
+
+    def merge_in_drawing_shape(self):
+        self.sketch.shapes.append(self.drawingShape)
+        for c in self.drawingConstraints:
+            self.sketch.constraints.append(c)
+        self.drawingConstraints = []